Inventor
ISHIKAWA CHIAKI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “ISHIKAWA CHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS6243288B1Jun 5, 2001
Giant magnetoresistive sensor, thin-film read/write head and magnetic recording apparatus using the sensor
HITACHI LTD138 citations97
US5850326ADec 15, 1998
Narrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layer
HITACHI LTD45 citations96
US6839200B2Jan 4, 2005
Combination perpendicular magnetic head having shield material formed at both ends of an upper pole of a write element
HITACHI LTD12 citations92
US6538844B2Mar 25, 2003
Method of fabricating a magnetic head by focused ion beam etching
HITACHI LTD13 citations92
US6456466B1Sep 24, 2002
Magnetic head with shield layer having discontinuous multi-layer or mixed layer and magnetic recording apparatus utilizing the magnetic head
HITACHI LTD29 citations92
US6396734B2May 28, 2002
Giant magnetoresistive sensor, thin-film read/write head and magnetic recording apparatus using the sensor
HITACHI LTD27 citations91
US6307707B1Oct 23, 2001
Narrow track thin film head including magnetic poles machined by focused ion beam etching
HITACHI LTD4 citations74
US6278578B1Aug 21, 2001
Narrow track thin film head having a focused ion beam etched air bearing surface
HITACHI LTD4 citations74
US6111723AAug 29, 2000
Narrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layer
HITACHI LTD8 citations74
US6643105B2Nov 4, 2003
Magnetic head having magnetic shield layers
HITACHI LTD9 citations73
US6665141B2Dec 16, 2003
Magnetic head having track width defined by trench portions filled with magnetic shield material
HITACHI LTD1 citations63
US6721148B2Apr 13, 2004
Magnetoresistive sensor, thin-film read/write head, and magnetic recording apparatus using the sensor
HITACHI LTD0 citations52
HITACHI GLOBAL STORAGE TECH
4 patentsUS7158351B2Jan 2, 2007
Magnetic recording and reproducing head restraining a side reading
HITACHI GLOBAL STORAGE TECH18 citations92
US6967823B2Nov 22, 2005
Magnetic recording head
HITACHI GLOBAL STORAGE TECH32 citations92
US7206175B2Apr 17, 2007
Magnetoresistive head having defined relationships between the tract width and magnetization film thickness product to permit no hysteresis in the transfer curve
HITACHI GLOBAL STORAGE TECH3 citations62
US7116534B2Oct 3, 2006
Magnetoresistive head
HITACHI GLOBAL STORAGE TECH0 citations52
MIYAZAKI SHINGO
4 patentsUS8688969B2Apr 1, 2014
Cryptographic management apparatus, decryption management apparatus and program
MIYAZAKI SHINGO4 citations71
US8417964B2Apr 9, 2013
Software module management device and program
MIYAZAKI SHINGO4 citations61
US8406422B2Mar 26, 2013
Cryptographic module management apparatus, method, and program
MIYAZAKI SHINGO2 citations60
US8396218B2Mar 12, 2013
Cryptographic module distribution system, apparatus, and program
MIYAZAKI SHINGO2 citations60